:root {
  color: #15233c;
  background: #f5f7fb;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; }
header { background: #061c4b; color: white; padding: 28px 24px; }
header div, main { width: min(760px, calc(100% - 40px)); margin: 0 auto; }
header a { color: white; text-decoration: none; font-weight: 800; font-size: 20px; }
main { margin-top: 32px; margin-bottom: 64px; background: white; border: 1px solid #e2e7f0; border-radius: 14px; padding: 34px; box-shadow: 0 12px 40px rgba(6, 28, 75, 0.06); }
h1 { margin-top: 0; font-size: 32px; letter-spacing: -0.03em; }
h2 { margin-top: 30px; font-size: 20px; }
p, li { line-height: 1.7; color: #42516b; }
a { color: #2866d7; }
.meta { color: #67758e; font-size: 14px; }
.support-card { background: #f4f7fc; border-radius: 10px; padding: 18px; }
.walkthrough { width: 100%; margin: 14px 0 18px; background: #061c4b; border-radius: 10px; box-shadow: 0 10px 30px rgba(6, 28, 75, .16); }
.pricing-card { max-width: 520px; margin: 24px 0; padding: 24px; color: #fff; background: #061c4b; border-radius: 12px; }
.pricing-card > span, .pricing-card > em { display: block; color: #c7d7fe; font-style: normal; }
.pricing-card > strong { display: inline-block; margin-top: 16px; font-size: 44px; }
.pricing-card li { margin: 9px 0; }
@media (max-width: 600px) { main { padding: 24px; } h1 { font-size: 27px; } }